ORGANIZATION : Compumag 2017
JOURNAL :
YEAR : 2017.06
VOL :
PAGE :
The harmonics of the induced voltage under load conditions can cause the deterioration of the motor performance. It occurs when
the peak value of the demand voltage exceeds the DC link voltage. Thus, to analysis and reduce the induced voltage harmonics under
load conditions, the induced voltage is separated into three components. Through the separation, the induced voltage of the
concentrated flux synchronous motor (CFSM), the reference motor, is analyzed. Consequently, the dominant component causing the
voltage harmonics is determined. In addition, based on the results, the design method using the advanced inverse cosine function
(AICF) is proposed in this paper. Using this method, an asymmetric rotor shape is determined by considering the armature reaction.
As a result, an improved CFSM achieving the required performance is designed. Lastly, the induced voltages and input currents of the
motors are compared through finite-element analysis (FEA) as well as experiments.